Often I have a feeling that Justin bought Steem just to help Tron to grow. Steem can be generated by posting and Upvote rewards and that is what all the Steemit Team curation acocunts doing while they curating they earn a lot. With that when htey are sold he can buy more Tron and remove it from availability on market. Less token available the higher price will be. Also, sometime ago it was announced that large amount of Tron were regulalry burnt this way htey were also removed from free market. Just does everything for his own business and Steem is a tool, that is a feeling I have.